Former Cabinet Minister Clare Short has been named one of the country's costliest MPs in an academic report looking at Westminster expenses.
In the period 2001-04, Ms Short's expenses claims amounted to £1,260 for each time she voted in a Commons division, said the report by researchers from the London School of Economics.
The Ladywood MP was one of a number of members of the Government, or former members, whose expenses were above average.
She was the seventh most expensive MP in the Commons - with Tony Blair, Gordon Brown and Jack Straw taking up the first three positions.
But controversial MP George Galloway, was named Westminster's costliest backbencher.
The Respect MP for Bethnal Green and Bow claimed £1,491 for each vote.
He has come under fire in recent weeks for confining himself to the Celebrity Big Brother house instead of attending debates and votes in the House of Commons.
But the figures, which date back to his time as Labour MP for Glasgow Kelvin, show that he had previously been one of Westminster's least-regular attenders, and the fifth most expensive MP in terms of cost per vote.
Former Stourbridge MP Debra Shipley (Lab) was also above average, at £843 per vote during her time in the Commons.
The report said it was "not surprising" that senior Ministers were at the top of the table.
Cabinet ministers claim an average £9,000 less in expenses than backbenchers, but attend fewer Commons votes because other responsibilities keep them away from Parliament for much of the time.
Each vote by a Minister cost the taxpayer £545 more than one by a backbencher.
The average MP's vote cost £556 in expenses, while the cheapest cost just £257, the report found.
Each vote attended by a Conservative MP cost the taxpayer about £58 more than a vote attended by a Labour or Lib Dem MP.
The report's authors, Professor Timothy Besley and Dr Valentino Larcinese, said that MPs' expenses were "mostly justifiable".
Dr Larcinese said: "Up until now, MPs have not themselves been subject to performance targets. But this raises the wider issue of whether - as public servants - they should.
"Our findings show that the allowance system does seem to fulfil its main purposes of levelling the playing field between MPs with different circumstances and providing MPs with the means to improve the quality of their service." ..SUPL: